Once you have clicked the download button, a zip file will download to your computer. When you unzip the file there will be three files. POGO EA (which will be a .ex4 file) and a  two Word documents with the instructions. The Word document named POGO ReadMe is the original instructions and the Release Notes POGOv1.1 which refers to all the updates and changes in this version. In this document there is a link to a video demonstrating the changes as well..